Yarn and method of making the same



April 2, 1935. H, w BELL 1,996,318

YARN AND METHOD OF MAKING THE SAME Filed April 14, 1934 Patented Apr. 2, 1935 UNITED -STATES PATENT OFFICE- YARN AND METHOD or MAKING THE SAME.

Harvey W. Bell, Chattanooga, Tenn, asslg'nor to Hurlbut-Bell Company, Chattanooga, Tenn., a corporation of Tennessee Application April 14, 1934, Serial No. 720,608

10 Claims. (01. 66-202) This invention relates to a novel yarn and a yarns on hand is effected and a substantial savmethod of making the same, this yarn being inis realized due to the fact that there are no tended primarily for use in making knitted fabodd lots of various colored yarns left over. rics but not being limited to such use. The in- The above described yarn is adaptable not 6 vention will be described with relation to stockonly to hosiery but also for use in making other ings made from so-called mock twist yarn and textile fabrics by knitting, weaving, etc. to the type of yarn used. Referring to the drawing, which is made a part Mock twist yarn is a single thread yarn which of this application and in which similar referhas' the appearance of a two ply yarn, one thread ence characters indicate similar parts:

10 of which is dyed and the other'white. Mock Fig. 1 illustrates one form of yarn that may 10 twist yarn is made by dyeing part of the fibres be made by the use of my invention, before the spinning of the fibres into a yarn. Fig. 2, adifferent type of yam, After part of the fibres are dyed they are spun Fig. 3, the yarn of Fig. 2 on a greatly enlarged together with white fibres into a single thread, Scal and I the dyed fibres giving the single thread the ap- Fig. 4, the yarn which is the preferred form of 15 pearance of being two separate yarns twisted toyarn that may be produced by my invention. her. i In the drawing, reference character l0 indicates There are numerous disadvantages to making white portions of a single strand yarn such as hosiery from mock twist yarn. One of the disare produced by the immunized roving or other 0 advantages is that in making hosiery of this unspun material that is supplied to the spinning type it is necessary to have numerous different machine, the portions produced by the untreated colors of mock twist yarn in a millto make up natural cotton being indicated at Ii. It will be a complete line of hosiery of this type. Another understood that the showing in Fig. 1 is merely disadvantage is that there is usually always a diagrammatic and the portions of diflerent color considerable delay in producing mock twist yarn, may be of any desired and practical length such- 25 since the dyeing of fibres must be done prior to as can be produced in a spinning operation. the spinning operation. It is impossible to judge In Fig. 2 there are shown three rovings going accurately the quantity of yarn that a certain to make up a yarn according to my invention. amount of dyed fibres will make, consequently Of these rovings that indicated at l2 consists of there is usually either too much or too little fibres that have been dyed at some time prior to 30 mock twist yarn of a given color produced. This the spinning operation. Rovings I3' and I4 are overage or shortage is a considerable handicap indicated as being white or undyed and one of to manufacturers of this type hosiery. these rovings consists of fibres that have been im- 1 have discovered that by using immunized cotmunized to the action of dyes, in the manner ton (a cotton treated chemically by a patented above described, whereas the other roving con- 35 chemical process to render cotton fibres immune sists of natural untreated fibres. After this yarn to dyestuffs that ordinarily dye cotton fibres) inhas been spun to form the product indicated at stead of dyed cotton fibres, a white single yarn is I 5 it may be treated with dye in any conventional produced that after knitting into a stocking and or desired manner so as to leave that part of the subjected to a dyeing operation has the same apyarnformed from the roving l2 of the same color pearance as a stocking made from a. mock twist as it was before, as indicated at IS in Fig. 3. The yam. This effect is obtained due to the fact that immunized portion l1 remains undyed or white the immunized cotton is spun in the place of the but the non-immunized portion which was white dyed fibres along with natural untreated cotton when spun i Changed to the 0010! Of the y as fibres and then when the stocking is dyed, the indicated at I8 in Fig. 3. 45 untreated cotton dyes any color desired, but the The portion shown at I2 in Fig. 2 and at I6 immunized cotton does not take the dye. The in Fig. 3 may be black or of some other dark result then isof course identical with that ob- 00101 a w ot be afiected b a'lighter dy tained by the use of mock twist yarn. used on portion l8, or the pre-dyed portion may v 5 The advantages of the new yarn are that in be treated witha resist, or the portion y e the manufacture of hosiery as described above, dy d t a s ad t m s wi the dy f r it eliminates the necessity of having numerous portion l8 to alter its originalcolor, etc.; all as different colored mock twist yarns in a mill; the known to be within the skill of the dyer. manufacture of such hosiery can be materially The preferred form of my mock twist yarn is accelerated; a large reduction of inventory of shown in Fig. 4, this being the form most used in practical work. This yarn comprises undyed portions l9 made from immunized fibres and dyed portions 20 made of fibres which were white when spun, being then in the natural untreated condition, but which were subsequently dyed and preferably dyed only after being embodied in a knitted, woven or other textile fabric.

While I do not limit myself to any particular method for immunization of cotton fibres, various methods being known to the art, at the present time I prefer to use such chemically treated cotton as that produced by the Munitex Corporation of Paterson, New Jersey, under their patented process.

Various types of mock twist yarn may be produced by my invention, as will be obvious to those skilled in the art and other variations in the product and process will also be evident to those skilled in the art; therefore I do not limit myself to what is shown in the drawing and described in the specification but only as indicated in the appended claims. Neither do I limit myself necessarily to the use of natural and immunized cotton fibres since other textile fibres may also be employed according to my invention.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent is:

1. A method of making knitted fabric from mock twist yarn comprising combining continuously into a spun yarn natural untreated cotton fibers and immunized cotton fibers, knitting fabric from such yarn and thereafter subjecting the fabric to a dyeing operation, whereby the untreated portion of the yarn is dyed whereas the immunized fibers remain unaffected by the dye.

2. A method of making yarn comprising the step of spinning together simultaneously untreated cotton fibers and cotton fibers immunized to the action of dye.

3. A method of making textile fabrics comprising combining into a yarn untreated cotton fibers and cotton fibers immunized to the action of dye, incorporating the yarn into a fabric, and thereafter subjecting the fabric to the action of a 'dye, whereby the untreated fibers become colored while the immunized fibers remain unafiected by the dye.

4. A method of making a yarn comprising spinning together untreated cotton fibers and cotton fibers immunized to the action of dyes, so as to form a white yarn and thereafter treating the yarn with a dye, whereby the untreated fibers are colored but the immunized fibers are unaffected by the dye.

5. A single strand yarn including undyed cotton fibers and undyed cotton fibers immunized to the action of dye.

6. A single strand yarn including natural untreated cotton fibres and undyed cotton fibres immunized to the action of dye.

7. A single strand cotton yarn including fibres of natural color, some of which have been immunized to the action of a dyeing agent which is efiective on other fibres of said yarn.

8. A single strand mock twist yarn comprising dyed fibres, undyed cotton fibres and fibres immunized to the action of a dye.

9. A mock twist yarn comprising dyed cotton fibres and cotton fibres immunized to the action of a dye.

10. A mock twist single strand yarn comprising natural untreated fibers and fibers of similar origin treated to immunize them against the action of dyes that affect said untreated fibers.

HARVEY W. BELL. 

